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BACTERIA

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Bacteria Bacteria are prokaryotic, unicellular organisms. Bacteria are very small; so much so that 1 billion could fit on 1 square centimeter of space on the human gums, and 1 gram of digested food has 10 billion bacteria. Bacteria are the simplest living organisms. Previously they fell under the Kingdom Moneran, but now they fall into two different Kingdoms: Archaebacteria and Eubacteria. There are several differences between the two. Archaebacteria have no peptidoglycan in their cellular walls. They also have odd lipids in their cell walls. Many are able to live in extreme places (like early Earth). There are 3 types of Archaebacteria. The first type is Methanogen. These use Carbon dioxide and Hydrogen to make Methane. They are found in sewage, cows, and swamps, and they do not take in oxygen. The second type is Extreme Halophile. These live in extremely salty places (i.e.: the dead sea and great salt lake). Finally, the third type is Thermoacidophiles. These prefer ext...
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Anatomy of flowering plants

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ANATOMY OF   FLOWERING   PLANT Anatomy: Anatomy is the study of internal structure of organisms. Plant     anatomy includes organisation and structure of tissues.   Tissue: A group of similar cells along with intercellular substance which perform a specific function. Meristematic tissues: The meristematic tissue is made up of the cells which have the capability to divide. Meristems in plants are restricted to a specialised   regions and responsible to the growth of plants. Meristems Apical meristem Intercalary meristem Lateral meristem   • Occurs at the tips of roots and • Occurs between mature tissue • Occurs in the mature      Shoots regions of roots and shoots   • Primary meristem • Primary meristem • Secondary meristem ...
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